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Leiters alongside the motor housing in grooves "seemingly provided for that purpose." Similarly he pans the AEG because its grip left his pinky and ring finger hanging out. For his information and for those out there who don't regular- ly drive and drill hundreds of screws and holes, these drills are designed to be held by the motor housing. With your hand directly behind the motor, the drilling/driving action is aligned with your forearm, causing much less fatigue, truer holes and allOWing much more force to be exerted without racking your wrist. Also, the nose-heaviness of the downgraded drills disappears once the drill begins to work-a more important criterion. -Jim Mattson, Silver Spring, Md. Facts of wood movement-Referring about face-to-face gluing: In your August 1993 issue, Bruce Hoadley's response to Mr. Tanzi's question on face-to-face gluing was correct. Brian Whitehead's explanation is wrong. Wood expansion and shrinkage is not a matter of opinion; it is to Hoadley was right December issue of Fine Woodworking - a fact. I recommend R. Bruce Hoadley's book Understanding Wood by The Taunton Press to Brian Whitehead and anyone else who wants to know more about wood movement. -Frank Klausz, master cabinetmaker, Pluckemin, NJ In the letters column of the ovember/ #103), Brian Whitehead claimed that Professor Bruce Hoadley had made a mistake when he advised an earlier writer how to glue two boards together. It was a good strategy on your part not to have Professor Hoadley respond to Whitehead's comment. It would have been difficult for him to do so without using words like "stupid" and ( FWW Spaces vs. centers-I enjoyed the article by Jim Tolpin, "Organize Your Projects" in FWW #103. I could not agree with him more. However, I go about spacing slats, shelves and drawers a little differently, and I think for the most part, it is Simpler, more easily understood and just as accurate. Jim locates centers, and I locate spaces. Centers are often co v- Swiss Design WOodworking Machines Renowned Inca Precision Woodworking Machinery Inca Model CABI（嗳 IIAK（嗳㭨၀ NEWE（嗳 Utilizing the latest in computer technology, is the newest in computer •• . . . .. IP 204 N. EI Cammo Real. Suite E 431 ••••••• EnCinitas. CA 92024 READ 8 Fine Woodworking ER SERVICE NO. 157 . FAX/PHONE: 619-632-9386�miCrOSystems inc. (800) 995-1389 CALL FOR YOUR FREE B ROCH URE! the custom cabinet maker. Simple to operate, it is powerful support for large production manufacturers, yet very affordable · priced for the one man shop! CNC POSITIONING SYSTEMS FOR: Fretwork • • ? Laser JlachiRiRg., IRC. Db. S .. • Inlaying Profiling Odd Hole Production Repeatability 500 A Decode of Laser Processing And Systems Development -New Expanded Facilities & & Marquetry Piercing ENGRAVING SYSTEMS FOR: Recognition Laser Drive, Somerset, WI . ,.. 0 m 0.11.." 0 CHe Con trol 54025 • 715/247·3285 715/247·5650 L.,.r Job • Ad Specialty Giftware Signage Furniture Enhancement & Fax: 0 XY T.�. 0 Cu.fom Sy.'em. 0 Shop Tel: . 0 S.,.../ce READ ER SERVICE NO.7; 0 uler·Or..,.': Decor Platage INCA 2217 LASER 570 1 OW READER SERVICE NO. 188 AND EQUIPMENT • • JointerfThickness Planer EXAMPLE: 570 5 Model Equipped with the Famous Tersa Instant Cutter Change System Shipped Direct from Inventory Year Limited Warranty Gall or Send for More Information on the Entire Inca Line INJECTA MACHINERY EI Sol Ave (B1B) 797-82&2 Altadena, CA 91001 The Toothless Woodworker WE PROVIDE PROVEN LASER WOODWORKING the FWW #103 letter ''wrong'' because these describe Whitehead's letter. A more polite response might have been to refer Whitehead to pp. 3-12 and G-2 of The Encyclopedia olWood, originally published as The Wood Handbook by the USDA Forest Service. Page 3-12 shows how flat-grained boards are most likely to distort (away from the pith side, as shown in the drawing below), and page G-2 defines a check as a "lengthwise separation of the grain that usually extends across the rings of annual growth." Wood cups away from heart side. So it appears that Hoadley was correct. The boards should be glued with the growth rings in the opposite orientation and with the two pith sides faCing away from each other because "the boards might hold one another flat." Hoadley didn't deal with the issue of checking, but a check would not usually be parallel to the growth rings, causing the innermost ring to fall out. -Warren Walters, Walnut Creek, Calif.